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  Reviews by: CarlosChacon  

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Sigma 50-500mm f4-6.3 EX APO RF HSM

50_500EX_mdl_1_
Review Date: Mar 3, 2004 Recommend? yes | Price paid: $1,100.00 | Rating: 10 

 
Pros: Excellent construction quality, very sharp for a 10X super-zoom, great price, fast enough AF, HSM (which is really a must)...
Cons:
... heavy (but what lens with these characteristics would be light!?), somewhat stiff zoom ring, needs good light to work correctly, else you find yourself doing most of it manual. Tripod is a must for best results.

This lens has a very impressive and very versatile set of characteristics, it has excellent optical quality combined with a wide array of focal lenghts. It might not be the ideal lens to carry around for more than a few hours, though. If you are shooting with it, you better get a good tripod, you won't regret it!

In short: get one!


 
Sigma 15mm f2.8 EX Diagonal Fisheye

15mm_Lg_1_
Review Date: Feb 24, 2004 Recommend? yes | Price paid: $339.00 | Rating: 10 

 
Pros: Tack sharp, works very smoothly on the 10D (and the fishy look is not drastic on it), it goes extremely wide with little degradation on the edges, images look very sharp even after defishing, nicely built.
Cons:
Unable to take filters on the front, you really need to look where you are aiming, and how close you are, otherwise you might damage the lens by bumping it into something.

I received the lens last Thursday and even though I have not been able to test it extensively, I have done enough to convince myself that this is a really good investment if you need to go wide, with good quality and without breaking the bank.

The lens has a very professional feel to it, it is small and easy to handle. The petal hood really helps, as the bulbous front element might be damaged easily otherwise. As others have said, it just looks too cool on the camera.

I have done some torture testing and found that even wide open the flare is well controlled, and the CA is mimimal on most cases. Color rendition is very good on mine. The images come out with very lively color and excellent contrast.

If you do not have one yet, I really recommend you to try it.


 
Sigma 105mm f2.8 EX Macro 1:1 Lens

05_105mmEX_1_
Review Date: Feb 4, 2004 Recommend? yes | Price paid: $480.00 | Rating: 10 

 
Pros: Great optic quality, well built and still light, very good price.
Cons:
Slightly noisy AF, AF tends to hunt even with good light - not that AF is *that* important in a macro like this anyway.

After a lot of research for a good macro lens, basically 2 options remained: Canon 100mm and Sigma 105mm. So, unable to test them before getting them (for geographic reasons) I intensified my research on images and tests side-by-side and was amazed to find that the Sigma stayed on par and in some cases even overperformed the Canon. So I went for the Sigma and I'm very pleased at how sharp the images are. Not a single second of regret on this purchase.